Engine



E. R. BURTNETT.

ENGINE. APPLICATION FILED OCT. 4, 1919. 1,377,462. Patented May10,1921'.

5 SHEETSSHEET l.

AC7'OPNEFS.

'L. R. BURTNETT.

ENGINE.

, APPLICATION FILED OCT 4, 1919. 1,377,462., Patented May 10, 1921. 5 SHEETS-SHEET 2. Y

I v Y E. R. BURTNETT.

ENGINE.

APPLICATiON FILED OCT- 4,1919 I 1,877,462, Patented May 10, 1921.

2 5 SHEETS-$HEET 3- Xvi 51v ram 2 EVEPETT r BURT/VET? E. R. BURTNETT.

ENGINE.

APPLICATION FILED OCT. 4, 1919- I 1,877,462. Patented May 10,1921,

5 SHEETS-SHEET 4.

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. E. R. BUHTNETT.

ENGINE.

APPLICATION FILED OCT. 4,1919.

1,377,462, v l Patented May 10, 1921.

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NITED STATES PATENT FFICEU EVERETT 1a. eun'mn'r'r, or LOS ANGELES, CALIFORNIA, assrenoa or ONE-HALF-Tb 110mmv A. BUN'ELL, or LOS ANGELES, CALIFORNIA.

ENGINE.

Specification of Letters Patent. Patented May 10, 1921.

' Application filed October 4, 1919. Serial No. 328,602.

T 0 all whom it may concern:

Be it known that I, EVERETT R. BURTNETT, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Engines, of which the following is a specification.

My invention relates to internal combustion engines and consists of the novel features herein shown, described and claimed.

Figure L is a fragmentary top plan view of an internal combustion engine embodying the principles of my invention, the view be ing taken looking in the direction indicated by the arrowsl n Figs. 2 and 3.

Fig. 2 is a vertical longitudinal central section on the lines 2-2 of Figs. 1 and 3 and looking in the direction indicated by the arrows.

Fig. 3 is a vertical cross section on the lines 33 of Figs. 1, 2 and 4 and looking in the direction indicated by the arrows.

Fig. 4 is a fragmentary horizontal sectional detail on a plane parallel with Fig. 1 and on the lines 4-.-4 of Figs. 2 and 3 and looking downwardly as .indicated by the arrows.

Fig. 5 is a detail elevation of the rotary sleeve indicated by the arrows 5 in Figs. 2, 3 and 4 and looking in the direction indicated by the arrow 5 in Fig. 6.

Fig. 6 is a top plan view looking in the direction indicated by the arrow 6 in Fig. 5.

Fig. 7 is a vertical diametricalsectional detail on the line 77 of Fig. 6 and looking in the direction indicated by the arrow.

Fig. 8 is a view in elevation of the piston cylinder indicated by the arrows 8 in Figs. 2 and 3 and looking in the direction indicated by the arrow 8 in Fig. 9. I

Fig. 9 is a top plan view looking in the direction indicated by the arrow 9 in Fig. 8.

Fig. 10 is a horizontal sectional detail on the line 10-10 of Fig. 8 and looking downwardly as indicated by the arrows.

Fig. 11 is a vertical diametrical sectional detail of the piston cylinder on the same plane as Fig. 3 and on the line 11-11 of Fig. 9 and looking in the direction indicated by the arrows.

Referring to Figs. 9 and 11, the piston cylinder 1 has a straight body 2 and a straight piston chamber 3 in the body 2. Notches 4 and 5 are formed in the lower end of the body 2 to allow the piston rod to with the recess 13 and provides means for mounting a spark plug.

A flange 14 extends inwardly from the upper end of the body 2 at. the top of the piston chamber 3 and has a flat upper face 15 and a circular face 16 at right I angles to the face 15 and at right angles to the upper face 17 of the flange 10. A

neck 18 extends upwardly from the flange l4 and the head 19 extends upwardly from the neck 18. The head 19 has a circular outer face 20 in line with the face 16 and a beveled outer face 21 extending downwardly from the circular outer face 20 to the neck 18. An annular recess 22 extends downwardly from the upper face of the head 19,

to lighten the casting. A straight bore extends through'the flange 14, through the neck 18, and through the head 19 to form the valve piston chamber 23., A plurality of ports 24 is formed through the neck 18 and communicate with the valve piston bore 23.

Referring to Figs. 5, 6 and 7, the rotary valve sleeve 25 has a cylindrical body 26, a

supporting flange 27 extending outwardly from the upper end of the body 26, an attaching flange 28 extending inwardly from the body 26, a bevel gear rim 29 fitting against the flange '28, cap screws 30 inserted through -the rim 29 and tapped into the flange 28, and the bevel gear 31 formed integral with the rim 29.

Referringto Figs. 2 and 3, the rotary valve sleeve 25 fits upon the piston 1.. The inner face 32 of the body 26 is finished to fit the faces 16 and'20 of the piston cylinder so that the sleeve will rotate, and the flange 28 extends inwardly above the head 19.

The piston crank shaft 33 is mounted in bearings 34 and 35. The piston rod 36 is mounted upon the crank 37. The piston cylinder 1 is mounted through-lthe crank. I I e p "through the'body'26'finfa plane to register with the openings51," 53, 55- and 56. The

case 38 with the flange, 6"rest1iig uponahe crank case, and bolts 39 are inserted through the holes 8 and't'a'ppedinto the crankcase to hold the piston cylinder inplace with the cylinder extending some, distance into the crank case chamber 40.. i

The piston 41 operates in the piston chamher 3 and is connected to the PlStOIIIOd 36.

, crank shaft 33. Acountershaft 43 is mountthe lower end of the countershaft 43 and meshes with the bevel gear 42'. VA bevel A bevel gear 42 is fixed upon one end ofthe ed in a bearing 44 at right angles to the. crank shaft 33 and parallel with the-piston cylinder 1. A bevel gear 45 is fixed upon pinion 46 is fixed upon the upper end of the countershaft 43.

Referring to Figs. 1,2, 3 and 4 the mani fold casting 47 fits against the face 17 of tending through the flange 10 and having nuts 49 upon their lower ends. The casting 47 has a vertical finished bore 50 fitting the rotary valve sleeve 25. The casting47. has a ,passage 51 forming a fuel intake manifold chamber and leading through the wall 52 having the bore 50, and the casting '47 has, j an exhaust chamber 53 leading through the wall 52 and diametrically-opposite .the' passage 51, the spark plug 54 ingthe opening 12 being half way between the intake passage 51 and the exhaust passage 53 and the castingv 47' h s a fresh air intake chamber 55 leading through the wall 52 and afresh air' exhaust chamber 56 leading, through the opposite side from the spark plug 54.

flange 57 is-formed around the top of the bore 50, a casing 58 extends upwardly outside of the flange57, a ball bearing 59 is" wall 52, the fresh air intake 55 and thefresh air exhaust 56 being between'the fuel intake '51 and the exhaust manifold53 and on the V the fresh air.

i mounted upon the flange 5'7 inside of the cas- 5 Ting. 58, and the supporting flange 27 rests upon the ball bearing 59. A second ball rod 69 is mounted upon the crank70 of bearing 60 .is placed upon the supporting flange 27 of the casin'g 58 and held in place by a ring 61 .screwed into the casing 58- against the bearing-60.

"Bearing blocks '62 and 63 extend upwardly from the casting 47 and are formed integral with the casting. Bearings 64 and 65 are formed upon th'e'lbearing blocks 62 and 63.' The valve crankshaft 66 is mounted in'the bearings 64 and 65. A bevel gear 67 is fixed upon the valve crank shaft 66 and meshes with the bevel gear 31 upon the rotary valve sleeve '25. A bevel gear 68 is fixed upon one outer end of the valve crank shaft 66 and meshes with'the hovel pinion 46. A piston the valve crank shaft 66 and connected to lower face 73 ofthe valvepiston 71- forms the head of the piston chamber 3.

. Assuming that the crank shaft 33 turns in' the direction indicated by the arrow .74

then the countershaft 43 will turn in the direction indicated bythe arrow 75 and the .valve crank shaft 66 will turn in the direction. indicated by the arrow. 76.

In Figs. 2, 3 and 4 the parts are shown 'in firing position and at this time the port tion of a gear 68 and the gears 42 and 45 are equal so that the valve crank shaft 66 makes one revolution to three revolutions of the crank shaft 33. This construction makes a six strokecycle.

The chamber 77 around the neck 18 serves to connect the manifold. to the ports 24 and the valve piston 71 opens and closes the ports 24 to regulate the flow to and from the piston chamber 3. vThe .cap 78 isscrewed upon the upper edge ofthe'casing 58 to cover the parts within, the casing.

v Referringto. Fig. 4,'the. cycle strokes are marked 1*, 2 3 4 5 and 6f. The cycle stroke 3 is the explosion 'stroke,4"$ is the I exhaust stroke, 5 takes infresh 'air to cool the cylinder and clean the cylinder "64cm" hausts the fresh air, 1 takesin the 2 compresses the fuel, so that it takes six fuel; and] strokes of the piston 41 tomake a complete cycle of the engine. 1 takes in fuel',;2 coin presses the fuel, 3 fires the' cha'rge, 45pxhausts, 5 takes in fresh air and 65exhausts The valve 'piston71 per position'and uncovers the ports 24whenither port 72 registers respectivelywitli the 'obenfings 51 53, 55 and 56 and is'idweied and closes ports-24' when the port 72-19 passing :fromopen'ing '51 to'opening 53''" The face 73 ofl the valve piston makes a' close cutofl so thatnone of' the explosive force or other Iforces are wasted in the manifolds or com-f jmunicating passages. 1

Specifically my object is to an improved valve construction.

' Thus I have produced an der, a neck extending upwardly from the I, internal copubustion engine comprismg a p ston cyl1n-' piston cylinder, a head extending upwardly from the neck, there being a valve piston here through the neck and head and com municating. with the piston chamber, a 1'0.

tary valve sleeve fitting aroundthe head and 7 around the upper end of the piston cylinder, there being a chamberinside of the sleeve around the neck and a port through the sleeve, a bevel gear upon the rotary valve sleeve, a manifold casting securedv to the piston cylinder and fitting around the rotary valve sleeve and having chambers adapted to register with the port in the rotary valve sleeve, a valve crank shaft mounted above the bevel gear, a bevel gear upon the valve crank shaft meshing with the bevel gear upon the rotary valve sleeve, a connection between the valve crankshaft and the engine crank shaft whereby the valve crank.

one stroke being devoted to taking in fresh air to internally cool the piston cylinder.

Various changes may be made without departing from the spirit of my invention as claimed.

I claim:

1. An internal combustion engine comprising a piston cylinder, a neck extending upwardly from the piston cylinder, a head extending upwardly from the neck, there being a valve piston bore through the neck and head and communicating with the piston chamber, a rotary valve sleeve fitting around the head and around the upper end of the piston cylinder, there being a chamber inside of the sleeve around the neck and a port through the sleeve, a bevel gear upon the rotary valve sleeve, a manifold casting secured to the piston cylinder and fitting around the rotary valve sleeve and having chambers adapted to register with the port in the rotary valve sleeve, a valve crank shaft mounted above the bevel gear, a bevel gear upon the valve crank shaft meshing with the bevel gear upon the rotary valve sleeve, a connection between the valve crank shaft and "the engine crank shaft whereby.

the valve crank shaft is rotated one revolution tothree-revolutions of the engine crank shaft, a valve piston in the valve piston bore, and a piston rod connecting the valve piston to-the valve crank shaft so as to make a six stroke cycle, one stroke being devoted to taking in fresh air to internally 'cool the piston cylinder.

2. The combination with a piston cylinder, of a neck extending upwardly from the head of the piston cylinder, a head extending upwardly from the neck there being lateral ports through the neck and a piston valve bore through the head and neck and communicating with the piston chamber, a rotary sleeve mounted around the chamber end of the piston cylinder and around the head there being a chamber between the sleeve and the neck and there being a' port through the sleeve, a piston in the piston valve bore, a crank for operating the piston, and a connection between the crank and the engine crank shaft.

3. In an internal combustion engine, a

manifold casting having a rotary valve sleeve bore, a fuel intake chamber communicating with the bore, an exhaust chambercommunicating with the bore, a fresh air intake chamber communicating with the bore, a fresh air exhaust chamber communicating with the bore, a rotary valve sleeve fitting in the bore and having a port adapted to register with the chambers successively, a piston cylinder having a head fitv ting in the rotary valve sleeve and having lateral ports and a piston valve bore concentric with the rotary valve sleeve, a piston in the piston valve bore, means for operati the rotar valve sleeve and means for operating the piston valve,|

In testimony whereof I have signed my name this specification.

EVERETT R. BURTNETT. 

